Research Of Dynamics Performance Of Multi-Branch Torsional System And Development Of Its Analysis Software Based On Web

In rotary mechanical systems, the torsional vibration of shafting is a ubiquitous physical phenomenon of dynamics. If not attaching importance to it, it will give us engender a high loss of economy. The torsional vibration of the shafting of a rotary mechanical system is able to bring the system emit yawper, and it will bring on its shaft to rupture if the vibration is very severe. It is obvious that the vibration brings severe effect to system's security in run and its performance. On the other hand, with the development of rotary mechanical systems toward super high speed, light, high-power, their patterns are also more and more, and their structure of shafting are becoming more and more complexity, which makes the problem of torsional vibration of shafting become increasing severity. However, an important reason, which brings a rotary mechanical system occur to torsional vibration of shafting, is that the unseemly design engenders nature frequency of shafting to approach the system's rotate speed of work. So it is important for us to choose accurate calculation methods and models, and make friendly program to finish the torsional vibration calculation of shafting.This thesis discusses many methods, which can solve torsional vibration of shafting. These methods have their own advantages and disadvantages. Based on the discussion, we select the mass method and the Holzer's method as the base of theory in this thesis. By comprehensive study on Holzer's method, this thesis constructs a suit of dynamics analyzing models of shafting torsional vibration and its calculating methods. They relatively accord with the fact, and their calculating methods are also relatively simple, and their significance of physics is specific. Based on these methods and models, we developed a suit of shafting torsional vibration analytical software based web, which promotes the development that the profound analytical knowledge of shafting torsional vibration applies in network. It conveniences users make use of it to calculate shafting torsional vibration. It also makes users enhance the calculating efficiency. In the aspect of constructing of software, this thesis adopts...